Yankees second baseman Starlin Castro has changed agents, moving his representation to Barry Praver of Magnus Sports, according to ESPN.com’s Jerry Crasnick (via Twitter). Also making the switch is top Blue Jays prospect Vladimir Guerrero Jr.

In Castro’s case, he likely won’t be up for any contract negotiations for a few more years — unless the Yankees were to entertain thoughts of an extension. Though Castro is still just 27 and has been quite productive (.307/.344/.472) this year, that’d be a surprise. After all, his current deal takes him through 2019 and includes a club option for the following season.

As for Guerrero, who’s still just 18, his star is clearly on the rise as he mashes in the lower minors. He isn’t on the MLB radar yet, but has already gained top-twenty leaguewide prospect billing and could move quickly through the Toronto system.

It’s important to bear in mind that players change representation for many possible reasons. And even if contract talks aren’t a near-term concern, marketing deals are always a consideration.

The Yankees had scout Brandon Duckworth in attendance to watch Texas’ game in Tampa Bay on Friday, leading to speculation that the Bombers are interested in Rangers ace Yu Darvish, writes George A. King III of the New York Post. New York is one of many potential suitors for Darvish, who struck out 12 Rays in eight innings Friday. For the Yankees, Darvish would more than make up for the loss of Michael Pineda to Tommy John surgery and give the playoff hopefuls another front-line starter to join Luis Severino. However, it’s unclear whether they’d be willing to pay what figures to be a heavy price for a rental.

More on New York and a couple of its AL East rivals:

In unfortunate news for the Yankees, second baseman Starlin Castro is headed back to the disabled list with hamstring issues, tweets King. The Yankees will recall rookie Tyler Wade to take over for Castro, who first hit the DL in late June because of a Grade 1 hamstring strain. Castro came back July 15 and appeared in six of eight games before his latest DL placement. Injuries notwithstanding, the 27-year-old is in the midst of a fine season, having hit .307/.344/.472 with 12 home runs in 337 plate appearances.

The Rays are interested in acquiring reliever Pat Neshek from the Phillies, so Philadelphia is heavily scouting Tampa Bay’s farm system, according to Mark Feinsand of MLB.com (Twitter link). Neshek is among a host of relievers the bullpen-needy Rays have been eyeing with the deadline approaching.

While the Rays are currently looking for outside help, they have an in-house reinforcement on the way in center fielder Kevin Kiermaier, who suffered a hip fracture June 8. Kiermaier is eligible to return from the DL on Aug. 9, and he expects to do just that if all goes well on a rehab assignment, reports Marc Topkin of the Tampa Bay Times (Twitter link). Even though Kiermaier is one of the Rays’ cornerstones, their outfield has fared nicely in his absence, with Mallex Smith and Peter Bourjos filling in well in center.

The Red Sox aren’t cutting ties with struggling righty Doug Fister, but they have demoted him from the rotation to the bullpen, per Jen McCaffrey of MassLive.com. The 33-year-old Fister became the odd man out after the return of Eduardo Rodriguez, who was on the shelf with a knee injury from the beginning of June until earlier this week. Fister, whom Boston claimed off waivers from the Angels in late June, has recorded a 7.89 ERA, 7.48 K/9, 6.23 BB/9 and a 36.8 percent ground-ball rate over 21 2/3 innings and five appearances (four starts) with the Red Sox. His walk rate is significantly higher than his career mark (2.03 per nine), but the Red Sox expect positive regression in that department. “We had a chance to sit and talk a little bit earlier today and you look at the start he made in Texas where a lot of his misses were up above the strike zone,” said manager John Farrell. “He made a tangible adjustment where (Thursday), granted there were misses, but they’re below the strike zone where he has got to miss. That’s where he needs to live.”

4:45pm: An MRI revealed only a Grade 1 strain for Castro, tweets Mike Mazzeo of the New York Daily News. Castro believes he can return in the minimum 10 days, calling the strain less severe than the more serious hamstring strain that he sustained last September, tweets MLB.com’s Bryan Hoch.

4:35pm: The Yankees announced Tuesday that they’ve placed second baseman Starlin Castro on the 10-day DL due to a strained right hamstring and selected the contract of infielder/outfielder Tyler Wade from Triple-A Scranton/Wilkes-Barre. There’s no word from the team yet on how much time Castro is expected to miss.

The 27-year-old Castro is in the midst of his finest season at the plate, hitting .313/.348/.486 with a dozen homers, 13 doubles and a triple. With him on the shelf, the Yankees could look to Wade and Rob Refsnyder to assume the bulk of the duties at second base. Wade bats from the left side of the dish, so the Yankees have the makings of a platoon on their hands between the two.

Wade, 22, was New York’s fourth-round pick back in 2013 and is in the midst of a strong season in Triple-A, where he’s hitting .313/.390/.444 with five homers and an International League-leading 24 stolen bases (in 28 attempts). Wade entered the season ranked eighth among Yankees prospects, per ESPN’s Keith Law, and he currently ranks 11th among their prospects per Jim Callis and Jonathan Mayo of MLB.com. He draws praise as an above-average defender at shortstop and has also played quite a bit of second base in the minors (in addition to some time in center field). Wade doesn’t have much power but has walked in 10.4 percent of his Triple-A plate appearances against a reasonably low 17.1 percent strikeout rate.

The Yankees also shuffled their bullpen a bit, recalling Tyler Webb from Scranton/Wilkes-Barre and optioning Jonathan Holder back there in his place. Webb’s presence gives the Yankees a third lefty in the ’pen (and a fourth Tyler on the 25-man roster). In 33 1/3 Triple-A innings, Webb has logged a 3.24 ERA with 12.7 K/9, 0.8 BB/9 and a 51.8 percent ground-ball rate.

Yankees second baseman Starlin Castro left last night’s game with a right hamstring strain, as MLB.com’s Bryan Hoch writes. The severity of the injury isn’t yet clear — he’ll head for an MRI today — but Castro did say that he hopes he can avoid a DL stint. If a roster move is needed, though, it seems that the club may give a shot to young infielder Tyler Wade. The 22-year-old, who’s slashing .313/.390/.444 at Triple-A, was pulled from his own game in case he’s needed in the majors.

Here’s the latest on some health issues from around the game:

It seems there’s some optimism within the Nationals organization that outfielder Jayson Werth is ready to move towards a return from his bruised left foot. As Byron Kerr of MASNsports.com reports, it’s possible that Werth could make it back by mid-July. In his absence (and that of Chris Heisey), the Nats have relied upon a combination of Brian Goodwin and Ryan Raburn. Both have hit quite well, making it an easier decision for the team to allow Werth to heal fully. Goodwin, a former top prospect, had scuffled at Triple-A but seems to have found his power stroke in the majors; the left-handed hitter could spell Werth and split time with Michael Taylor in center if the Nats don’t add another option up the middle at the deadline.

Reds lefty Brandon Finnegan left his first start back from the disabled list with what the team is calling a triceps strain. As Zach Buchanan of the Cincinnati Enquirer writes, the club is waiting to decide whether he’ll need to return to the DL until he’s examined today. While it’s promising that the new problem isn’t related to the teres major muscle strain that recently shelved Finnegan for an extended stretch, the organization will obviously look to exercise caution with the 24-year-old.

The Dodgers have announced yet another DL placement for a starter, this time involving righty Brandon McCarthy. As Andy McCullough of the Los Angeles Times explains, right knee tendinitis is the cause for the move, though it’s also notable that McCarthy struggled with command in his last outing. That raised some comparisons to the veteran’s problems in 2016. Regardless, it seems the hope is that McCarthy won’t miss much action and that he’ll be able to return to the strong form he has carried thus far in the current campaign, over which he has thrown 72 innings of 3.25 ERA ball. In corresponding moves, righty Brock Stewart and outfielder Trayce Thompson were elevated, with right-hander Ross Stripling being optioned to open the additional roster spot.

Right-hander Jon Garland, 37, hasn’t pitched professionally since the Rockies released him in June 2013. Four years later, Garland is mulling a comeback, according to Scott Merkin of MLB.com. Garland threw Sunday for White Sox pitching coach Don Cooper, as Bruce Levine of 670thescore.com was first to report (viaTwitter). Before that, Garland told Levine that his arm feels the best it has in three years. However, he also informed Merkin that he’s unsure if he’s committed to returning because it would mean spending less time with his family. Garland pitched to a 4.37 ERA over 2,100-plus innings with six teams (mostly the White Sox) from 2000-13. He exceeded the 200-inning plateau in six seasons during that span, including a career-high 221 as a member of the World Series-winning White Sox in 2005.

More from around baseball:

At 33-40, the Cardinals are already 12 games out of a wild-card spot in the National League. Consequently, their only realistic avenue to the playoffs is to erase a 5.5-game deficit in the NL Central. They’re going to have to start making up ground by next month’s trade deadline, Cardinals general manager John Mozeliak admitted to Jerry Crasnick of ESPN.com. “This team has a chance to do good things, but we have to get it going,” said Mozeliak. “Urgency has to be on the forefront of our thinking. There is no clock in baseball, but time is moving.” Mozeliak revealed that the Cardinals are “open-minded” to buying or selling, but Crasnick argues that taking the latter path could be difficult because they’re not exactly chock-full of trade chips. They already sold one veteran last month, sending first baseman Matt Adams to the Braves for minor league infielder Juan Yepez. While Adams has caught fire since the trade, Mozeliak doesn’t regret shipping him out. “Sometimes a change of scenery for players is what they need,” he noted. “Matt’s killed it, but that’s not to say he didn’t get opportunities a year ago. Sometimes when you make decisions, you know there might be more upside in a player. But unless you can create that availability [for playing time], it’s pretty tough.”

The Yankees, mired in their worst stretch of the season, are likely to place outfielder Aaron Hicks on the DL, manager Joe Girardi announced Sunday (Twitterlinksvia Bryan Hoch of MLB.com). Hicks left the Yankees’ loss to the Rangers on Sunday with right oblique tightness and will undergo an MRI on Monday, relays Hoch, but the player indicated that he’ll miss three to four weeks. Hicks has surprisingly been among the majors’ most valuable players this year, with a .290/.398/.515 batting line and a 2.7 fWAR. Fortunately for the Yankees, they have a quality replacement in Jacoby Ellsbury, who could come off the DL on Monday. Ellsbury has been out since late May with a concussion. Meanwhile, another of the Yankees’ top performers, second baseman Starlin Castro, has been dealing with a wrist issue for six weeks, tweets Hoch, who adds that he received a cortisone shot Sunday.

In better news for the Yankees, left-hander C.C. Sabathia is “progressing very, very well” as he works back from a Grade 2 left hamstring strain, Girardi said (via Matthew Martell of MLB.com). Sabathia threw 35 pitches Sunday in his first bullpen session since hitting the DL on June 15, relays Martell, who writes that the former ace could be back in New York’s rotation by month’s end. Sabathia has been one of the Yankees’ steadiest starters this year, having logged a 3.46 ERA, 7.41 K/9, 2.87 BB/9 and a 49.8 percent ground-ball rate over 75 1/3 innings.

The goal is for Orioles closer Zach Britton to return by July 5, manager Buck Showalter told Brittany Ghiroli of MLB.com and other reporters on Sunday. Forearm problems have forced Britton to the disabled list twice this year, limiting the two-time All-Star to just nine innings (he last pitched on May 4). While Brad Brach has filled in with aplomb as Baltimore’s closer, the team’s Britton-less bullpen hasn’t been great overall. Orioles relievers entered Sunday ranked 13th in the majors in ERA and 23rd in fWAR.

The Yankees explored trades for several high-priced veterans on their roster this winter, with Joel Sherman of the New York Post reporting that Starlin Castro was among these names. The Yankees “let some clubs know [Castro] was available,” which comes short of actually shopping the second baseman but it does indicate at least an openness to the idea of a deal. As withChase Headley and Brett Gardner, the Yankees weren’t able to drum up much trade interest in Castro.

In his first year in the pinstripes, Castro hit .270/.300/.433 with 21 homers over 610 plate appearances, making him a below-average runs creator (94 wRC+). Castro hit for more power than ever before (a career-best .163 Isolated Slugging mark) but he also set a new career high with a 19.3% strikeout rate. He also posted subpar glovework as per the Defensive Runs Saved (-8) and UZR/150 (-7.7) metrics in his first full season as a second baseman.

Castro showed enough promise early in his career that the Cubs signed him to a seven-year, $60MM extension in August 2012 but his production has since declined. With the exception of a strong 2014 campaign, Castro hasn’t delivered much at the plate in three of the last four seasons, and with below-average baserunning and on-base skills, a bump in power might not create enough extra value for Castro if his contact rate and defense continue to decline. It’s worth noting that Castro is both still young (he’s entering his age-27 season) and he has had a year to adjust to AL pitching, so it could perhaps be too early to write him off.

Still, as Castro is owed $30MM through the 2019 season (plus a $16MM club option for 2020 that carries a $1MM buyout), it makes sense that the Yankees would at least consider moving a player who has generated just 1.9 fWAR combined over the last two seasons. The Yankees have been operating under a tighter-than-usual budget this winter, Sherman notes, as the team is aiming to get under the luxury tax threshold by next season.

Aroldis Chapman and Matt Holliday were the club’s major free agent expenditures, while Brian McCann was dealt to the Astros and the likes of Castro, Headley and Gardner were all floated in trade talks. The Yankees have shown a willingness to eat some money to facilitate trades (as in the McCann deal), though outright salary dumps appear to be out of the question as the club continues to rebuild its minor league system.

That deeper farm system may also play a role in New York’s willingness to discuss Castro deals. Shortstop Gleyber Torres was the centerpiece of the Yankees’ midseason trade of Aroldis Chapman to the Cubs, plus Jorge Mateo, Wilkerman Garcia and Tyler Wade are all ranked within MLB.com’s list of the Yankees’ top 15 prospects. With Didi Gregorius seemingly locked into a spot in the middle infield for years to come in the Bronx, this surplus of second base/shortstop talent could make Castro an odd man out for reasons beyond just his salary.

The Dodgers wrapped up their five-year agreement with Kenley Jansen yesterday and are nearing the completion of a four-year deal with Justin Turner — both ESPN’s Jim Bowden and FanRag’s Jon Heyman have reported today that just small details remain to be worked out — but Doug Padilla of ESPN.com reports that the impending re-signing of Turner doesn’t close the door on a trade for Minnesota’s Brian Dozier. Per Padilla, a trade package for the Twins’ slugging second baseman might have to center around right-hander Jose De Leon or a similar asset, but the Dodgers are reluctant to part with De Leon. A reunion with 2016 second baseman Chase Utley hasn’t been entirely ruled out either, according to Padilla. Utley delivered a solid season on a one-year deal with the Dodgers last year, hitting .252/.319/.396 with 14 homers, but Utley logged a dismal .154/.206/.264 slash in 97 plate appearances against lefties. The Dodgers’ greatest weakness in 2016 may have been their struggles against southpaws — an area where Dozier could provide a significant boost (.282/.353/.613 in 2016, .270/.343/.512 in his career).

A few more notes regarding the offseason trade and free-agent markets…

FOX’s Ken Rosenthal tweets that with Jansen back in the fold, the Dodgers aren’t planning on offering more than a one-year deal to any free agent relievers. That, he notes, could take them out of the mix for Greg Holland in the event that Holland is still eyeing multi-year deals. Of course, it should be noted that it’s difficult to definitively rule the Dodgers out of making a bargain two-year play later in the offseason. If a pitcher that is widely believed to sign a lucrative two- or three-year pact at present sees his market crumble somewhat and loers his asking price on a two-year pact a few months from now, one can imagine the Dodgers jumping in and making a value play.

Both the Rangers and Orioles have expressed some level of interest in free-agent slugger Chris Carter, per MLB Network’s Jon Morosi (on Twitter). Neither team is especially close to a deal with Carter, however, he cautions. The seriousness of the interest from Texas and Baltimore isn’t clear from Morosi’s brief report, though it’s easy to see how Carter could fit into the plans of either team. The Rangers abruptly lost Prince Fielder this past season when neck issues forced him to retire, while first baseman Mitch Moreland hit free agency and agreed to a deal with the Red Sox. The Orioles, meanwhile, could lose both Mark Trumbo and Pedro Alvarez to free agency, though they’re said to be in talks about retaining Trumbo. There’s certainly an argument that Carter is a similar and more cost-effective alternative to Trumbo, especially if the O’s are planning to use either at DH moving forward. Carter was non-tendered by Milwaukee last month on the heels of a .222/.321/.499 batting line and an NL-best 41 homers (as well as an NL-worst 206 strikeouts).

Morosi also tweets that the Astros have had some talks with the Tigers regarding left-handed reliever Justin Wilson. Houston joins the Cubs as the most recent team to be linked to Wilson, who pitched to a 4.14 ERA in his first season with Detroit but also recorded career-bests in K/9, BB/9 and ground-ball rate. MLBTR contributor Matt Swartz pegs him for a reasonable $2.7MM next year, and Wilson will be controllable through the 2018 season via the arbitration process.

Speaking of the Cubs, they’re maintaining some interest in right-hander Tyson Ross, reports Bruce Levine of CBS Chicago/670 The Score. Ross was non-tendered by the Padres after undergoing surgery to alleviate thoracic outlet syndrome in October, and while he could well be ready to pitch early in the 2017 campaign, the Padres clearly weren’t comfortable with a projected salary between $9-10MM. Levine spoke to one NL exec who expected Ross to receive an incentive-laden contract that allows Ross to earn nearly as much as he otherwise would have through arbitration with the Padres. The Cubs, according to Levine, have had interest in Ross since the summer of 2015, when they tried to broker a deal that would’ve sent Starlin Castro to the Padres in return. According to Levine, the Rangers are also interested in swinging a deal with Ross now that he’s a free agent, though it’s easy to imagine a wide number of teams showing interest in a short-term commitment to a player with Ross’ upside. The 29-year-old turned in a 3.07 ERA with 9.2 K/9 against 3.5 BB/9 and a strong ground-ball rate in 516 2/3 innings with the Padres from 2013-15.

The Diamondbacks are aiming to improve their bullpen and have reached out to a pair of familiar free agent relievers, Brad Ziegler and Daniel Hudson, according to Nick Piecoro of the Arizona Republic. Ziegler previously spent parts of six seasons with the Diamondbacks, who traded him to Boston in July. New D-backs executive vice president and general manager Mike Hazen was the Red Sox’s GM at the time, of course, so he’s familiar with Ziegler. Hudson, meanwhile, has been with Arizona since 2010. The 29-year-old has recorded a 4.50 ERA, 9.07 K/9 and 3.3 BB/9 in 128 innings as a reliever over the past two seasons.

More from Arizona and a few other NL cities:

Along with bolstering his bullpen, Hazen hopes to add left-handed hitters, he told Piecoro. “I think being a little more left-handed could certainly help us,” Hazen said. “Pigeonholing it into one specific focus, I think, would be too complicated to try to pull off. I think we can be opportunistic about that.” The Diamondbacks have four established or potential regulars who are either lefties or switch-hitters in third baseman Jake Lamb, outfielder David Peralta, catcher Chris Herrmann and infielder Ketel Marte, notes Piecoro. They could trade outfielder Yasmany Tomas in an attempt to become less right-handed, but there’s not much of a market for him, sources informed Piecoro. While Tomas belted 29 home runs in 2016, the 26-year-old’s .272/.313/.508 line wasn’t great overall; further, he doesn’t provide defensive or baserunning value and still has $48.5MM coming his way through the 2020 season.

The Cubs made attempts over the past couple years to acquire right-hander Tyson Ross from the Padres and could pursue him in free agency, according to Bruce Levine of CBS Chicago. “The Padres were close to trading Ross to the Cubs for Starlin Castro,” a major league source who worked for one of the teams told Levine. “San Diego execs were mixed on asking for Castro or Javier Baez. The deal went down to the wire in late July of 2015 but never got to the point of exchanging medicals.” Ross was a front-of-the-rotation starter at that point, but he only threw 5 1/3 innings last season and is currently recovering from thoracic outlet syndrome surgery. The Padres non-tendered him Friday.

The rebuilding Reds are committed to giving regular playing time to young middle infielder Jose Peraza in 2017, general manager Dick Williams and manager Bryan Price told C. Trent Rosecrans of the Cincinnati Enquirer (Twitter link). That’s particularly notable with two up-the-middle veterans – second baseman Brandon Phillips and shortstop Zack Cozart – in place. Cincinnati attempted to deal Phillips last offseason, but he took advantage of his ability to block a trade. Phillips, who has one year and $14MM left on his contract, is reportedly more open to waiving his no-trade clause this offseason. Cozart also has one year of club control remaining, and he nearly went to the Mariners prior to last summer’s non-waiver trade deadline. Seattle has since acquired Jean Segura, taking it out of the running for Cozart, but he could still interest other shortstop-needy teams looking for a capable and affordable stopgap. MLBTR contributor Matt Swartz projects a $4.7MM arbitration award for Cozart.

The Cubs’ decision to keep Javier Baez has proven to be a wise one, and Heyman writes that the team kept Baez over Starlin Castro last offseason because the front office simply had more belief in Baez’s potential. Not only did Castro carry a much higher price tag than the pre-arb Baez, but the Cubs infielder is already looking like the more productive player — Baez posted 2.7 fWAR over 450 plate appearances, while Castro managed just 1.1 fWAR over 610 PA for the Yankees. Baez has shown great power and is cutting back on his strikeouts, though while he is still something of a work in progress at the plate, his defense has already drawn raves. One NL scout tells Heyman that he thinks Baez could win Gold Gloves at multiple positions in the future.

Jorge Soler could again be trade bait as the Cubs will be juggling a crowded outfield situation. Kyle Schwarber will return to play left field, plus Jason Heyward and Ben Zobrist would seem to be penciled in for center and right, respectively. That mix also doesn’t include highly-touted rookie Albert Almora, or if the Cubs were to re-sign Dexter Fowler for center field. Soler drew a lot of trade attention last winter and is signed through 2020, so though he hasn’t truly broken out as a big leaguer yet, he would surely be a big trade chip if the Cubs indeed explored moving him.

The Tigers and Diamondbacks both “tried hard” to sign John Lackey last winter before the right-hander inked his two-year, $32MM deal with the Cubs. Lackey reportedly chose Chicago over two larger offers, though Heyman doesn’t know if the Tigers and D’Backs were the clubs behind those bigger deals. Arizona was known to have “at least checked in” on Lackey last winter, and while Detroit’s involvement in the Lackey market is new information, it isn’t a surprise given how the Tigers targeted starting pitching last offseason. Either team landing Lackey sets up several fascinating what-if scenarios, given that the D’Backs and Tigers made alternate pitching acquisitions that didn’t pan out in 2016. If the Diamondbacks signed Lackey, perhaps they then wouldn’t have made the franchise-altering decisions to sign Zack Greinke or trade for Shelby Miller. If the Tigers had gotten Lackey, perhaps they wouldn’t have spent $110MM on Jordan Zimmermann, or $16MM on Mike Pelfrey.

There have already been reports that the Mets intend to exercise their $13MM club option on Jay Bruce for 2017, and a rival executive tells Heyman that retaining Bruce is a move New York has to make. Keeping Bruce would create some defensive issues within the Mets outfield, though the exec noted that “if they don’t want him, they could always trade him.” Bruce slumped badly after joining the Mets but he posted strong numbers in the season’s first four months, so he’d certainly draw interest on the trade market.

Clint Frazier and Justus Sheffield were the two headline prospects sent from Cleveland to New York in the Andrew Millertrade, and Heyman reports that some Indians staff believe Sheffield could be the bigger loss: “Sheffield is a lefty starter, which you can’t find, Frazier is a corner power bat, which you can.” It’ll be several years before we can access how that trade worked out for either the Yankees or the Tribe, though needless to say, nobody in Cleveland has any regrets right now, given Miller’s dominance.

Yankees infielder Starlin Castro suffered a Grade 1 hamstring strain while running the bases Saturday and could miss the rest of the season, as MLB.com’s Bryan Hoch notes. Grade 1 strains are the least severe type of strain, but could require a two-week recovery time. The Yankees are likely to use Ronald Torreyes and Donovan Solano at second base in Castro’s absence. The Yankees promoted Solano today after a .319/.349/.436 season for Triple-A Scranton/Wilkes-Barre.

The loss of Castro is a tough one for the Yankees, who are currently 3 1/2 games back in the AL Wild Card race. Castro has batted .273/.304/.439 in 593 plate appearances in his first season in pinstripes, but he’s been hot down the stretch, hitting .313/.333/.571 in August and .310/.328/.483 in September.

The 26-year-old Castro will, of course, remain under team control for the foreseeable future, with the Yanks paying him a total of $30MM over the next three years, plus either a $16MM 2020 option or a $1MM buyout, as per the terms of the pre-arbitration extension he signed with the Cubs in 2012.